Toledo Express is also a major air cargo center, serving as the international hub for BAX Global. Toledo Express has begun a $22 million renovation project; As of 2007, the airport has expanded and renovated the central gate area of its single terminal, and is seeking an airline to offer direct service to New York City. Toledo Express also hosts the corporate flight departments of Owens-Illinois, Owens-Corning, Pilkington, and Dana Holding Corporation. Grand Aire Express offers charter and air taxi services from its base at the airport. In education, the airport is a base of operations for FlightSafety International and Toledo Public Schools' aviation program, with flight instruction also offered by the airport's two fixed-base operators, who also provide fuel, repair, and storage for general aviation aircraft. Additionally, Toledo Express is a base for F-16 fighter jets of the Ohio Air National Guard, which has provided the airport additional funding for runway lengthening and safety enhancements. Detroit Metropolitan Airport to the north, Port Columbus International Airport to the southeast, and Cleveland Hopkins International Airport to the east are the major or hub airports serving residents of Northwest Ohio. Detroit Metro is a "fortress hub" for Delta Air Lines and offers both domestic and international flights. Cleveland Hopkins is a hub for United Airlines and offers both domestic and international flights. Charter and air taxi service is also available at several smaller airports, such as Toledo Metcalf Field, Findlay Airport, and Lima Allen County Airport. General aviation users can also land at any one of approximately 40 public-use airports (both publicly and privately owned) in Northwest Ohio. KFDY (Findlay Airport) has both the second and third largest runway in Northwest Ohio with runway 18/36 at 6449 x 100 ft and runway 7/25 at 5883 x 100 ft. Runway 18/36 is capable of allowing aircraft such as the Boeing 767-200 to land and then take-off at MTOW if needed. KTOL (Toledo Express) has the largest runway in Northwest Ohio at 10,600 x 150 ft, making it capable of handling nearly any aircraft at MTOW. Roads Interstate 90 runs east-west through the upper part of Northwest Ohio. Interstate 75 runs from the Michigan border, through Toledo, south to Findlay, Lima, and to southwest Ohio. Railroads Amtrak serves the passenger train, the Lake Shore Limited in Bryan in the Extreme Northwest. Martin Luther King Jr. Plaza in Toledo and Sandusky host Amtrak's Lake Shore